If one writing contributed more than any other to the framework in which this work Sowell's Knowledge and Decisions developed, it would be an essay entitled 'The Use of Knowledge in Society,' published in the American Economic Review of September 1945, and written by F. A. Hayek . . In this plain and apparently simple essay was a deeply penetrating insight into the way societies function and malfunction, and clues as to why they are so often and so profoundly misunderstood.

Sometimes it seems as if there are more solutions than problems. On closer scrutiny, it turns out that many of today's problems are a result of yesterday's solutions.

One of the beauties of an economy coordinated by price movements is that nobody has to understand it in order for it to work.

Policies are judged by their consequences but crusades are judged by how good they make the crusaders feel.

Sellers in general maintain the quality of their products and services for fear of losing customers otherwise. But, when price controls create a situation where the amount demanded is greater than the amount supplied - a shortage - fear of losing customers is no longer as strong an incentive. For example, landlords typically reduce painting and repairs when there is rent control, because there is no need to fear vacancies when there are more tenants looking for apartments than there are apartments available.

You need only visit campuses where whole departments feature soft courses preaching a sense of victimhood and resentment, and see the consequences in racial and ethnic polarization on campus.

Liberals love to say things like, "We're just asking everyone to pay their fair share." But government is not about asking. It is about telling. The difference is fundamental. It is the difference between making love and being raped, between working for a living and being a slave. The Internal Revenue service is not asking anybody to do anything. It confiscates your assets and puts you behind bars if you don't pay.